Experimental Study on the Effect of Damping Ditch on Reduction of Blasting Vibration in Urban Area Short-hole Controlled-blasting

Abstract

Blasting vibration effect is one of the main harms in engineering Blasting, and damping ditch is a most important technique measures in reducing the influence of blasting vibration. Supported by a project, this thesis collected field data of blasting vibration in the excavation, and then uses the acquired data to analyze the general rules of damping ditch as a measure in reducing the influence of blasting vibration. It turned out that we can achieve sound result in reducing the influence of blasting vibration, changing the vibration wave frequency structure, energy spread and protecting the surrounding building structures by choosing parameters appropriately.